Recent developments in frequency metrology and optical clocks have been based on
electronic transitions in atoms and singly charged ions as references. The control over all …

The research progresses on the investigations of atomic structure and collision dynamics
with highly charged ions based on the heavy ion storage rings and electron ion beam traps …

We experimentally show that the 1 s 2 2 s 2 2 p 1/2-1 s 2 s 2 2 p 1/2 2 transition in Pb 77+
emitted in dielectronic recombination of Pb 78+ is strongly polarized, although it is an …

We report linear polarization measurements of x rays emitted due to dielectronic
recombination into highly charged krypton ions. The ions in the He-like through O-like …

A systematic investigation of dielectronic satellite lines in hydrogenlike ions with Z values
ranging from 9 to 92 is carried out, with a focus on the effects of the Breit interaction and the …

A most general density-matrix formalism is presented to investigate linear polarization of
characteristic lines following electron-impact excitation of atoms or ions with arbitrary …

The linear polarization of x rays produced by dielectronic recombination into highly charged
xenon ions was measured at an electron beam ion trap using the Compton polarimetry …

Interaction of highly charged heavy ions with electrons is one of the most important atomic
processes in high temperature plasmas, including astrophysical plasmas such as solar …

In electron-electron interactions in electromagnetic systems, retardation in the exchange of a
virtual photon is essentially important as the first-order quantum electrodynamics correction …

Electron-ion collision spectroscopy of the KLL dielectronic recombination (DR) resonances
of hydrogenlike xenon ions was performed at a heavy-ion storage ring with a resolving …